<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="分类名称" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入分类名称，如：饮料、生鲜、零食"
          clearable
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="父级ID" prop="parentId">
        <el-input
          v-model="queryParams.parentId"
          placeholder="请输入父级ID"
          clearable
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="分类层级" prop="level">
  <el-select v-model="queryParams.level" placeholder="点击选择分类层级" clearable style="width: 220px">
    <el-option label="一级分类" :value="1" />
    <el-option label="二级分类" :value="2" />
  </el-select>
</el-form-item>
      <el-form-item label="创建时间" prop="createTime">
        <el-date-picker clearable
          v-model="queryParams.createTime"
          type="date"
          value-format="YYYY-MM-DD"
          placeholder="请选择创建时间">
        </el-date-picker>
      </el-form-item>
      <el-form-item label="最后更新时间" prop="updateTime">
        <el-date-picker clearable
          v-model="queryParams.updateTime"
          type="date"
          value-format="YYYY-MM-DD"
          placeholder="请选择最后更新时间">
        </el-date-picker>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="Plus"
          @click="handleAdd"
          v-hasPermi="['transaction:category:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="Edit"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['transaction:category:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="Delete"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['transaction:category:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="Download"
          @click="handleExport"
          v-hasPermi="['transaction:category:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="categoryList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="分类ID" align="center" prop="id" />
      <el-table-column label="分类名称" align="center" prop="name">
  <template #default="scope">
    <span style="color: #409EFF; font-weight: bold;">
      {{ scope.row.name }}
    </span>
  </template>
</el-table-column>
      <el-table-column label="父级ID" align="center" prop="parentId" />
      <el-table-column label="分类层级" align="center" prop="level">
  <template #default="scope">
    <el-tag
      :type="scope.row.level === 1 ? 'primary' : scope.row.level === 2 ? 'success' : 'info'"
      disable-transitions
    >
      {{ scope.row.level === 1 ? '一级分类' : scope.row.level === 2 ? '二级分类' : '未知' }}
    </el-tag>
  </template>
</el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="最后更新时间" align="center" prop="updateTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.updateTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="分类图片URL路径" align="center" prop="imageUrl" width="100">
        <template #default="scope">
          <image-preview :src="scope.row.imageUrl" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['transaction:category:edit']">修改</el-button>
          <el-button link type="danger" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['transaction:category:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改商品分类：用于组织商品的多级分类结构（最多二级）对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="categoryRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="分类名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入分类名称，如：饮料、生鲜、零食" />
        </el-form-item>
        <el-form-item label="父级ID" prop="parentId">
          <el-input v-model="form.parentId" placeholder="请输入父级分类ID，一级分类为NULL" />
        </el-form-item>
        <el-form-item label="分类图片" prop="imageUrl">
          <image-upload v-model="form.imageUrl"/>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Category">
import { listCategory, getCategory, delCategory, addCategory, updateCategory } from "@/api/transaction/category"

const { proxy } = getCurrentInstance()

const categoryList = ref([])
const open = ref(false)
const loading = ref(true)
const showSearch = ref(true)
const ids = ref([])
const single = ref(true)
const multiple = ref(true)
const total = ref(0)
const title = ref("")

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    name: null,
    parentId: null,
    level: null,
    createTime: null,
    updateTime: null,
  },
  rules: {
  }
})

const { queryParams, form, rules } = toRefs(data)

/** 查询商品分类：用于组织商品的多级分类结构（最多二级）列表 */
function getList() {
  loading.value = true
  listCategory(queryParams.value).then(response => {
    categoryList.value = response.rows
    total.value = response.total
    loading.value = false
  })
}

// 取消按钮
function cancel() {
  open.value = false
  reset()
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    name: null,
    parentId: null,
    level: null,
    delFlag: null,
    createTime: null,
    updateTime: null,
    imageUrl: null
  }
  proxy.resetForm("categoryRef")
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1
  getList()
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef")
  handleQuery()
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.id)
  single.value = selection.length != 1
  multiple.value = !selection.length
}

/** 新增按钮操作 */
function handleAdd() {
  reset()
  open.value = true
  title.value = "添加商品分类：用于组织商品的多级分类结构（最多二级）"
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset()
  const _id = row.id || ids.value
  getCategory(_id).then(response => {
    form.value = response.data
    open.value = true
    title.value = "修改商品分类：用于组织商品的多级分类结构（最多二级）"
  })
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["categoryRef"].validate(valid => {
    if (valid) {
      if (form.value.id != null) {
        updateCategory(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功")
          open.value = false
          getList()
        })
      } else {
        addCategory(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功")
          open.value = false
          getList()
        })
      }
    }
  })
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value
  proxy.$modal.confirm('是否确认删除商品分类：用于组织商品的多级分类结构（最多二级）编号为"' + _ids + '"的数据项？').then(function() {
    return delCategory(_ids)
  }).then(() => {
    getList()
    proxy.$modal.msgSuccess("删除成功")
  }).catch(() => {})
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download('transaction/category/export', {
    ...queryParams.value
  }, `category_${new Date().getTime()}.xlsx`)
}

getList()
</script>

<style scoped>
.app-container {
  padding: 24px;
  background-color: #f4f6f8;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.el-form--inline .el-form-item {
  margin-right: 18px;
  margin-bottom: 14px;
}

.el-form-item .el-input,
.el-form-item .el-select,
.el-form-item .el-date-editor {
  width: 240px;
}

.el-table {
  font-size: 13px;
  border-radius: 8px;
  background-color: #ffffff;
  overflow: hidden;
}

.el-table th {
  background-color: #f5f7fa;
  font-weight: 600;
  color: #333;
}

.el-table__row:hover {
  background-color: #eef6ff;
}

.el-button {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.el-button + .el-button {
  margin-left: 8px;
}

.small-padding.fixed-width {
  min-width: 160px;
}

.dialog-footer {
  text-align: right;
  margin-top: 14px;
}

.el-dialog {
  border-radius: 14px;
  padding: 18px;
}

.upload-demo {
  border: 1px dashed #dcdfe6;
  border-radius: 6px;
  background-color: #fafafa;
  width: 100px;
  height: 100px;
  line-height: 100px;
  text-align: center;
  cursor: pointer;
}

.uploaded-image-preview {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 6px;
}

.pagination {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

/* 操作按钮 hover 效果 */
.el-button.is-link:hover {
  color: #409EFF;
  text-decoration: underline;
}
</style>
